[volt-nuts] Keithley 2001 - and Tek gear

[Alan Scrimgeour]

Problem solved then. Give us the manuals!!!

Scrim
----- Original Message ----- 
From: "J. Forster" <jfor at quik.com>
To: "Discussion of precise voltage measurement" <volt-nuts at febo.com>
Sent: Tuesday, November 16, 2010 6:16 PM
Subject: Re: [volt-nuts] Keithley 2001 - and Tek gear


> True.
>
> A friend of mine set up a plant to clone Tek scopes for a military
> contract. Tek caught on and drilled a couple of holes in the chassis that
> were unused. The cloner reproduced the scope including those holes. Tek
> sued and won. This was in the early to mid 1960s.
>
> Best,
>
> -John
>
> =============
>
>
>
>> Not to hijack a thread or get off topic, but that's why we love the older
>> Tek gear.  Their documentation was first rate.  That voluminous and
>> detailed documentation did come back to bite them, though.
>>
>> I read story in " Winning with people: The first 40 years of Tektronix"
>> about the Tek people discovering counterfeit scopes that the military
>> (Navy?) was having built.  As part of their contract to supply scopes 
>> they
>> had to supply documentation that amounted to a detailed build manual for
>> the product.  Once the military customer had the documentation they
>> shopped it around to contract manufacturers and found somebody who would
>> build the scopes to print for, presumably, a lower price than the genuine
>> Tek unit.
>>
>> Looks like there is such a thing as too much information :)
>>
>>
>> -John
>>
>>
>> -----Original Message-----
>> From: volt-nuts-bounces at febo.com [mailto:volt-nuts-bounces at febo.com] On
>> Behalf Of Peter Loron
>> Sent: Monday, November 15, 2010 5:52 PM
>> To: Discussion of precise voltage measurement
>> Subject: Re: [volt-nuts] Keithley 2001
>>
>> It's really a shame...I was reading through the manual for the Tek 131
>> current probe amplifier yesterday. Not only do they provide detailed
>> part listings and schematics on top of the troubleshooting steps, they
>> also provide directions on how to modify it to work as a general purpose
>> voltage amp! "...solder the resistor here..."
>>
>> -Pete
>>
>> On Mon, 2010-11-15 at 15:48 -0800, Randy Scott wrote:
>>> I just got the same answer from Keithley today: "We no longer provide
>>> schematics for our equipment."  Bummer.
>>>
>>> Also, in case anyone was curious, the new transformer for the 2001 is
>>> going to cost $157 USD.
>>>
>>> Randy.
>>>
>>>
>>>
>>> --- On Sun, 11/14/10, Alan Scrimgeour <scrimgap at blueyonder.co.uk> wrote:
>>>
>>> > From: Alan Scrimgeour <scrimgap at blueyonder.co.uk>
>>> > Subject: Re: [volt-nuts] Keithley 2001
>>> > To: "Discussion of precise voltage measurement" <volt-nuts at febo.com>
>>> > Date: Sunday, November 14, 2010, 4:30 AM
>>> > I contacted Keithley regarding the
>>> > schematic. It's itemised in the contents of one of the
>>> > manuals, or referred to in its text, but those pages of the
>>> > manual are missing. Keithley said it's not available. Any
>>> > ideas anyone?
>>> >
>>> > Alan
>>> >
>>> > ----- Original Message ----- From: "Raj" <vu2zap at gmail.com>
>>> > To: "Discussion of precise voltage measurement" <volt-nuts at febo.com>
>>> > Sent: Sunday, November 14, 2010 3:33 AM
>>> > Subject: Re: [volt-nuts] Keithley 2001
>>> >
>>> >
>>> > > I have one too..
>>> > >
>>> > > http://www.keithley.com/support/keidoc_searchresult?keyword=2001&item_type=Manual
>>> > >
>>> > > No schematic there.
>>> > >
>>> > > At 14-11-2010, you wrote:
>>> > >> Does anyone have schematics for the Keithley 2001
>>> > multimeter?  I received one today with a blown up
>>> > transformer.  I'd like to have a look at the automatic
>>> > AC input voltage selection circuit before replacing the
>>> > transformer.
>>> > >>
>>> > >> Thanks.
>>> > >>
>>> > >> Randy.
>>> > >
>>> > > -- Raj, VU2ZAP
>>> > > Bangalore, India.
>>> > >
>>> > >
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>>>
>>>
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>>
>>
>>
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>
>
>
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